caught in a Thunder Storm, Will they be OK??

all the chickens are out in the storm. It's not real cold out there but the Storm came up with hardly any notice. I had 3 big girls in their pen and went for the 4th, well the 3 took off under the bushes, It's coming down like crazy out there. all the babies 6-8 weeks are under the deck but still getting wet.
I guess they're not smart enough to go inside?